Incredible vs Sai by Simular

Sai operates a desktop the way a person does, from a chat prompt, most often in a cloud workspace it provisions. Incredible is voice-first, runs on your own Mac or PC, and acts across the apps you have already connected.

The short version: These are close, and Sai is a serious, well-funded agent. Sai does a task by driving a graphical desktop, clicking and typing through any app, most often inside a private cloud workspace it sets up, with the option to run on your own machine. Incredible is voice-first, runs on your own real machine with your real logged-in apps, and acts across 3,000+ connected apps, asking before anything consequential. The honest split is the interface, where the work runs by default, and how each reaches your apps.

Side by side

	Incredible	Sai by Simular
How you drive it	Yes. Voice-first: hold a key and say what you need.	Partly. Chat-first: you type the task. Voice is announced as coming, not shipped.
Where the work runs by default	Yes. On your own Mac or PC, in your real logged-in apps, seeing your screen.	Partly. Most often a private cloud desktop it provisions. It can also run on your own Mac if you choose.
How it reaches your apps	Yes. Acts across 3,000+ apps you have already connected.	Yes. Operates any graphical app on the desktop, including ones with no API. No connected-app catalog; it drives the screen.
Approvals before consequential actions	Yes. Asks before it sends, changes, or deletes, with an audit trail.	Yes. Asks before critical actions, and can turn a run into inspectable, repeatable code.
Computer-use benchmarks	Partly. Acts across your connected apps; we do not publish a computer-use score.	Yes. Its engine reached roughly human-level on OSWorld, and was state of the art in late 2025.
Platforms	Yes. Mac and Windows, both today.	Partly. macOS today; Windows announced through Microsoft’s agents program.
Price to start	Yes. Free to try, in an invite-only beta.	Partly. A 7-day trial, then paid plans from about $20/mo.

Who each one is for

Choose Incredible if:

• You want to talk to it, hands-free, as the main way you work.
• You want the work done on your own machine, in your real logged-in apps.
• You want to reach a wide catalog of apps you have already connected.

Choose Sai by Simular if:

• You want an agent that can drive any desktop app, including ones with no API.
• You are happy to run tasks in a provisioned cloud workspace.
• You value turning a proven run into repeatable, inspectable code.

Where they win

Sai is a serious agent, not a toy. It is well funded and research-backed, its engine reached roughly human-level on the standard computer-use benchmark, it can operate apps that have no API at all, and its idea of distilling a run into inspectable code is a genuinely strong approach to reliability. For driving arbitrary desktop software, it is excellent. Incredible takes a different path: voice-first, on your own logged-in machine, across 3,000+ connected apps, with approvals. Some will prefer one, some the other.

More that sets Incredible apart

• Workflow recordings: Teach it a repeated task once. Turn on recording, do the task while you talk through it, and it learns the steps, not the pixels, so a moved button or a new screen does not break it. A favorite with the teams we work with.
• It keeps an eye on your apps: Ask it to keep an eye on things, and it tells you when something happens, like a PDF arriving from a specific customer, so you do not have to keep checking.
• Remembers how you work: It picks up your preferences and the way you like things done, and gets more useful over time as it learns your work.
• Skills it can use: It knows how to do common jobs out of the box, and picks up new skills as your team teaches it.
• Easy for everyone: If you can say what you need, you can use it. No setup project and no scripting, built for the whole team, not just technical people or early adopters.

Questions, answered

Does Sai run in the cloud or on my computer?

Both. Sai’s flagship always-on experience runs in a private cloud desktop it provisions, and it can also run on your own Mac if you choose. Incredible runs on your own real machine by default, acting in your real logged-in apps.

Is Sai voice-first like Incredible?

Not. Sai is chat-first: you type the task, and voice is announced as coming. Incredible is voice-first as its primary interface, so you can work hands-free.

Which one works with more apps?

They reach apps differently. Sai drives any graphical app on the desktop, including ones with no API, but publishes no connected-app count. Incredible acts across 3,000+ apps you have already connected. Sai is general screen control; Incredible is a wide catalog of connectors.

Do both ask before doing something consequential?

Yes. Both ask for approval before critical actions. Incredible asks before it sends, changes, or deletes, with an audit trail; Sai asks before critical actions and can turn a proven run into inspectable code.